How are the number of chromosomes anf DNA content re established in new generation during sexual reproduction? (For 3 marks)
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In meiosis ( the cell division that occurs for the formation of gametes in the gonads ), the number of chromosomes is reduced to half the total number , I.e, 23 chromosomes ... this condition is called as haploid condition
This is significant because on fertilization of the nucleus of sperm ( containing 23 chromosomes) with the nucleus of the ovum ( 23 chromosomes) the normal number chromosomes ( 46 or 23 pairs ) will be restored in the zygote formed .. this is called as diploid condition
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